So, my idea is short note written mainly in incoherent German, though also containing scrawled bits in other languages, along with various strange and slightly macabre drawings. Those that maintain close contact for more than about 5 minutes will begin to experience severe headaches and begin to fidget and pace around. They will also begin to lose the ability to use language, which worsens until all attempts to communicate result in an incomprehensible babble. They becomes louder and more frantic in their communication attempts as this worsening occurs, often failing about in an almost violent manner. When given a writing utensil, they will scribble on the nearest surface in a mix of Latin, Cyrillic, and other scripts, but will attempt to write on the note if it is close enough. From what can be deciphered, the writing is very similar to that found on the note. Subjects usually die within 12-24 months of initial contact from seemingly unrelated causes, though suicide is not uncommon. Monitoring brain activity during this time shows that they have fully normal brain function, if not a bit higher than usual, and it appears that they are fully aware of what's happened to them.

This is still just a rough idea but any thoughts would be appreciated.

Right now this is just an anomalous item. To work as an SCP there needs to be more to it. Some kind of narrative/context that ties it into the Foundation universe and tells a story.

A common narrative to put into your article is backstory: Who made it and why? Was this "lose communication and die" effect deliberate? If not, what was it supposed to do? If so, why make something so elaborate just to kill someone?

Why is it a note? Why is it in German? What are these drawings actually of and why are they on it? Think a little bit less about the actual effect it has and more on why it has that effect.

Also, SCP-3449 has a similar-ish premise, so make sure it's different to that.